JP2006291412A - Tool for protecting human body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tool for protecting a human body 2 suppressing the generation of incompatible feeling on wearing it, and capable of effectively preventing the fracture of thigh bone cervix 32. <P>SOLUTION: This tool for protecting the human body 2 comprises a left and right pair of shock-buffering bodies 4 and a wearing body 6 equipped with a housing chamber 8 for housing the shock-buffering body 4. In a standing posture and at a hip joint middle positional state, from a position corresponding to major posterior margin of trochanter 24 to a position corresponding to os ishii 28 is covered with the shock-buffering body 4. Since the region has the highest frequency of getting a hit on falling down, by using the tool for protecting the human body 2, it is possible to prevent the fracture of the thigh bone cervix effectively. In the tool for protecting the human body 2, since parts other than the region from the position corresponding to the major posterior margin of trochanter 24 to the position corresponding to the os ishii 28 in standing position and hip joint middle positional state, which has a high hit frequency, is constituted so as to put a great importance on wear feeling, it is possible to suppress the generation of incompatible feeling on wearing the tool for protecting the human body 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a human body protection tool.

  Along with the increase in the elderly population, the number of accidents in which this elderly person falls and breaks is increasing. In particular, femoral neck fractures tend to increase. Complete healing of a femoral neck fracture takes time. In some cases, femoral neck fractures can lead to bedridden. The femoral neck fracture is becoming a major social problem, and its prevention is strongly demanded.

  The femoral neck fracture is considered to occur because the greater trochanter of the femur is struck against the ground or the like during a fall. Therefore, various protective devices have been proposed in order to prevent this femoral neck fracture.

  Japanese Patent Laid-Open No. 9-508824 discloses a hip protector having a dome-shaped member having a concave side face inward so as to meet the body shape around the femoral neck of a human body. The entire surface of the hip protector is made of a rigid foamed thermoplastic material and is formed as a dome-shaped hard shell.

  Japanese Patent Application Laid-Open No. 9-268409 discloses a garment in which a shock absorbing pad is used to protect a fracture caused by a fall or a collision. This acrylic copolymer foam is used as a shock absorbing pad in this fracture protection garment.

JP 9-508824 gazette JP-A-9-268409

  In the protective device described in the above publication, the femoral neck fracture generation mechanism is not sufficiently considered when setting the fixed location of the impact buffer. In addition to this, a sense of incongruity is caused by the protective equipment worn at the time of going to bed, sitting down or walking, so that this protective equipment is not used much. Therefore, there is a problem that femoral neck fracture is not prevented.

  An object of the present invention is to provide a human body protection device that can suppress the occurrence of a sense of incongruity due to its wearing and can effectively prevent a femoral neck fracture.

  The human body protection device according to the present invention includes a pair of left and right impact cushions and a mounting body including a storage chamber in which the shock cushion is accommodated. The shock absorber is configured to cover a region from a position corresponding to the greater trochanter trailing edge to a position corresponding to the sciatic bone in a standing and intermediate position of the hip joint.

  The human body protection device according to the present invention includes a pair of left and right impact cushions and a mounting body including a storage chamber in which the shock cushion is accommodated. This shock absorber is configured to cover a region from a position corresponding to the leading edge of the greater trochanter to a position corresponding to the sciatic bone in a standing position and an intermediate position of the hip joint.

  Preferably, in this human body protection device, an auxiliary buffer covering a portion corresponding to the sacroiliac bone is provided between the shock buffers.

  The human body protection device according to the present invention includes an impact buffer and a mounting body including a storage chamber in which the shock buffer is stored. The shock absorber is configured to cover a region from one large trochanter trailing edge corresponding portion to the other large trochanter trailing edge corresponding portion in a standing and hip joint intermediate position. The cushioning property of the shock absorber in the region from the position corresponding to the trailing edge of the greater trochanter to the position corresponding to the sciatice in the standing and hip intermediate state is superior to the other regions.

  Preferably, in this human body protection device, the thickness of the shock absorber in the region from the position corresponding to the trailing edge of the greater trochanter to the portion corresponding to the sciatus in the standing and intermediate position of the hip joint is thicker than the thickness in the other regions. .

  In this human body protection device, the region from the position corresponding to the greater trochanter trailing edge to the position corresponding to the sciatic bone in the standing and intermediate hip joint state is covered with an impact buffer. This area is the area where the frequency of bruises is the highest when falling, and the great trochanter moves greatly to the sciatic side at the time of falling, and this great trochanter is located in a state where it is struck against the ground, It is clear from the inventors' investigation. Therefore, by using this human body protection device, femoral neck fracture can be effectively prevented. In this human body protection device, since it can be configured with emphasis on the feeling of wearing, except for the region from the major trochanter trailing edge equivalent position to the sciatic equivalent position in the standing position with high bruising frequency and the intermediate position of the hip joint, Occurrence of discomfort due to wearing of tools is suppressed.

  Hereinafter, the present invention will be described in detail based on preferred embodiments with appropriate reference to the drawings.

  FIG. 1 is a rear view showing a part of a human body protection tool 2 according to an embodiment of the present invention, and FIG. 2 is a perspective view showing an impact buffer 4 included in the human body protection tool 2 of FIG. It is. The human body protection tool 2 includes a pair of left and right impact buffer bodies 4 and a mounting body 6. The mounting body 6 includes a storage chamber 8. The shock absorber 4 is accommodated in the accommodation chamber 8. The human body protection tool 2 is used for the purpose of the impact buffer 4 covering the movable range of the greater trochanter. Therefore, the human body protection tool 2 can protect this region.

  The mounting body 6 is substantially clothing. Examples of clothing include trousers, sweatpants, and belts. In this human body protection tool 2, the mounting body 6 is sweatpants.

  The storage chamber 8 is sewn to the mounting body 6 with a thread. This accommodation chamber 8 is a pocket. A fastener 12 is attached to the insertion port 10 of this pocket. When the impact buffer 4 is accommodated in this pocket, the insertion port 10 is closed with the fastener 12. Therefore, the shock absorber 4 does not go out of the pocket. In the human body protection tool 2, since the position of the storage chamber 8 is fixed, the position of the shock absorber 4 does not shift. In addition, a hook-and-loop fastener, a button, etc. may be used for joining this accommodation chamber 8 to the mounting body 6. The impact buffer 4 may be directly attached to the mounting body 6 using a hook-and-loop fastener, a button, or the like.

  The impact buffer 4 is a foam. The planar shape of the shock absorber 4 is substantially rectangular. Since the impact buffer 4 has flexibility, the human body protection tool 2 can be mounted in conformity with the shape of the body.

  Synthetic resin and rubber are used as the base polymer of the shock absorber 4. Examples of the material of the synthetic resin include polyurethane, polyester, polyolefin, polystyrene, polyvinyl chloride, ethylene-vinyl acetate copolymer, silicone, and various thermoplastic elastomers. Examples of the rubber material include natural rubber, polyisoprene, polybutadiene, butadiene-styrene copolymer, acrylonitrile-butadiene copolymer, and ethylene-propylene-diene copolymer. From the viewpoint of processability, polyurethane is preferred. Either ester-based polyurethane or ether-based polyurethane can be used, but ether-based polyurethane having excellent shape restoring properties is more preferable.

  The foam that constitutes the shock absorber 4 is obtained by chemical or physical treatment. Specific methods include a method using a volatile gas generated in the middle of a chemical reaction, a method using a foaming agent, a method of foaming during stirring, and the like.

  FIG. 3 is a cross-sectional view showing the position of the greater trochanter when the human body protection device 2 of FIG. 1 is mounted along the circumference of the human body in the standing and intermediate hip joint state. In this figure, a cross section 14 of the human body and the human body protection device 2 are shown. In the cross section 14 of the human body shown in this figure, the greater trochanter 16 and the sciatic bone 18 in the image obtained by observation with an X-ray computed tomography apparatus of an adult male in a standing position and an intermediate position of the hip joint are shown. It is shown. In FIG. 3, the intersection between the body surface 22 and the straight line L1 that intersects the body surface 22 perpendicularly to the body surface 22 among the straight lines that pass through the greater trochanter trailing edge position 20 is a portion 24 corresponding to the greater trochanter trailing edge. . Of the straight lines passing through the back surface side tip 26 of the sciatic bone 18, the intersection of the body surface 22 with the straight line L2 that intersects the body surface 22 perpendicularly is a sciatic equivalent portion 28. FIG. 3 shows a state where the region from the greater trochanter trailing edge equivalent portion 24 to the sciatic equivalent portion 28 is covered with the impact buffer 4.

  FIG. 4 is a cross-sectional view showing the position of the greater trochanter when the human body protection tool 2 of FIG. 1 is mounted and falls down rearward. The cross-sectional position of the human body shown in this figure coincides with the cross-sectional position shown in FIG. As is clear from FIG. 4, at the time of falling backward, the femur 30 is largely externally rotated, and the greater trochanter 16 is greatly moved toward the sciatica 18. The greater trochanter 16 is located in a region from the greater trochanter trailing edge equivalent portion 24 to the sciatic equivalent portion 28 in the standing and hip intermediate position. For this reason, in this fall to the rear side, the human body is landed in this state, so that the greater trochanter 16 is hit against the ground or the like. The femoral neck fracture is considered to occur when the greater trochanter 16 is struck against the ground or the like during a fall. Thus, a posterior lateral fall induces the development of a femoral neck fracture. In this human body protection device 2, since the region from the greater trochanter trailing edge equivalent portion 24 to the sciatic equivalent portion 28 in the standing and intermediate hip joint position is covered with the impact cushioning body 4, it falls to the rear side. The impact applied to the greater trochanter 16 is greatly relieved by the impact buffer 4. Therefore, the impact at the time of falling is not propagated to the femoral neck 32. This human body protection tool 2 prevents a femoral neck fracture.

  The inventors have studied the relationship between the bruised site and the frequency when the elderly fall. The inventors estimated the relationship between this bruised site and its frequency from the observation of falls of three infants who started virgin walking in which elderly people have similar walking patterns and muscle strength distributions. The inventors photographed the natural fall process of these three infants with a video camera from four directions, front, rear, left and right, and obtained the relationship between the bruised site and the frequency at the time of the fall from the recorded fall posture. Of these recorded fall postures, posterior and lateral falls where femoral neck fractures could occur accounted for 58.5% of the total number of falls. And as a bruise site | part of this fall to the back and a horizontal direction, the median direction (sacrum part) is 12.0%, back side (area | region from the greater trochanter 16 to the sciatica 18) is 42.8%, And the outside (large trochanter 16) was 3.7%. From this result, in the natural fall process, the fall from the rear side where the region from the greater trochanter 16 to the sciatic bone 18 in the standing and intermediate position of the hip joint is bruised is the most frequently occurring fall mode. It was made clear. As described above, it has been confirmed that the greater trochanter 16 is driven to the ground or the like because the greater trochanter 16 moves toward the ischia 18 in the fall to the rear side. Further, it is considered that the femoral neck fracture occurs because the greater trochanter 16 is struck against the ground or the like during the fall. From the above findings, in order to effectively prevent the femoral neck fracture of the elderly, the region from the greater trochanter posterior edge equivalent portion 24 to the sciatic equivalent portion 28 in the standing and intermediate hip joint state is important. It has become clear that it must be protected. This area is different from the area around the femoral neck 32 in the standing position and the intermediate position of the hip joint, which has been conventionally considered as an area to be protected to prevent the femoral neck fracture. In this human body protection device 2, since the region from the greater trochanter trailing edge equivalent portion 24 to the sciatic equivalent portion 28 in the standing and intermediate hip joint state is covered with the shock absorber 4, the femoral neck of the elderly Cervical fractures can be effectively prevented.

  In the conventional human body protection device that is configured to cover the periphery of the femoral neck 32 in a state where the shock absorber is in the standing position and in the intermediate position of the hip joint, the buttocks side end of the shock buffer is the body and the bed when sleeping. Between the body and the chair when seated, there is a great sense of incongruity when worn. From the detailed examination by the inventors, this uncomfortable feeling at the time of wearing is continuously covering from the greater trochanter equivalent position to the position closer to the sciatic equivalent position 28 when the shock absorber 4 is in the standing position and in the intermediate position of the hip joint. It is clear that it becomes smaller. The shock absorber 4 of the human body protection device 2 continuously covers the region from the greater trochanter trailing edge equivalent portion 24 to the sciatic equivalent portion 28 in a standing and intermediate position of the hip joint. Is small. Therefore, the human body protection tool 2 is superior in wearing feeling compared to the conventional human body protection tool. From the viewpoint of discomfort at the time of wearing, the shock absorber may be configured to continuously cover the region from the greater trochanter trailing edge equivalent portion 24 to the sacroiliac equivalent portion in the standing and intermediate hip joint state without any boundaries. More preferred. Particularly preferably, the entire collar portion is covered with an integral shock absorber.

  FIG. 5 is a cross-sectional view illustrating a state in which a human body protection device 34 according to another embodiment of the present invention is mounted along the circumference of a human body in a standing position and in a hip joint intermediate position. The human body protection tool 34 includes a mounting body 36, a pair of impact buffer bodies 38, and an auxiliary buffer body 40 positioned between the left and right impact buffer bodies 38. The mounting body 36 includes a storage chamber 42 in which the impact buffer 38 is stored and an auxiliary storage chamber 44 in which the auxiliary buffer 40 is stored. The form and material of the auxiliary buffer 40 are the same as those of the shock buffer 38. The configuration and material of the auxiliary buffer 40 may be different from that of the shock buffer 38.

  In FIG. 5, among the straight lines passing through the greater trochanter leading edge position 46, the intersection of the body surface 22 and the straight line L3 that intersects the body surface 22 perpendicularly is the greater trochanter leading edge equivalent portion 48. . A region from the greater trochanter leading edge equivalent portion 48 to the sciatic equivalent portion 28 in the standing and intermediate hip joint state is covered with the impact buffer 38. Since the auxiliary shock absorber 40 is positioned between the left and right shock absorbers 38, the impact at the sacroiliac equivalent portion 50 in the fall to the rear of the midline can be reduced. Since the entire buttock is covered with the impact buffer 38 and the auxiliary buffer 40, the uncomfortable feeling due to the mounting is small. Therefore, the human body protection tool 34 is excellent in wearing feeling. In the human body protection tool 34, it is only necessary that the end of the impact buffer 38 on the greater trochanter 16 side reaches the greater trochanter trailing edge equivalent portion 24 in the standing and intermediate hip joint state. The end may be located between the greater trochanter trailing edge equivalent portion 24 and the greater trochanter leading edge equivalent portion 48.

  FIG. 6 is a cross-sectional view showing a state in which a human body protection device 52 according to still another embodiment of the present invention is mounted along the circumference of a human body in a standing position and in an intermediate position of a hip joint. The human body protection tool 52 includes a mounting body 54 and an impact buffer 56. The mounting body 54 includes a storage chamber 58 in which the impact buffer 56 is stored. In this human body protection device 52, a region extending from one major trochanter leading edge equivalent portion 48 to the other major trochanter leading edge equivalent portion 48 in the standing and intermediate hip joint state is covered with an impact buffer 56. . In particular, the thickness of the region from the greater trochanter trailing edge equivalent portion 24 to the ischial equivalent portion 28 is thicker than the thickness of the other regions. Therefore, the shock-absorbing body 56 has a superior buffering property in the region from the greater trochanter trailing edge equivalent portion 24 to the ischial equivalent portion 28 in the standing and intermediate hip joint positions than the other regions. . For this reason, this human body protection tool 52 effectively prevents a femoral neck fracture. Since the entire buttock portion is continuously covered with the impact buffer 56 and the mass is effectively reduced outside the area where the buffering property is important, the human body protection device 52 is also excellent in wearing feeling. Yes.

  In FIG. 6, a double arrow line TA represents the thickness of the shock absorber 56 in a region from the greater trochanter trailing edge equivalent portion 24 to the sciatic equivalent portion 28. A double arrow line TB represents the thickness of the shock absorber 56 at the ischial equivalent portion 28. The ratio of the thickness TA to the thickness TB (TA / TB) is preferably 1.5 or more and 3.0 or less. Since this ratio (TA / TB) is set to 1.5 or more, the buffering property of the region from the greater trochanter trailing edge equivalent portion 24 to the sciatic equivalent portion 28 of the impact buffer 56 is improved. The impact applied to the greater trochanter 16 at the time of the direction fall is reduced. The human body protection device 52 provided with such an impact buffer 56 can effectively prevent a femoral neck fracture. In this respect, the ratio (TA / TB) is more preferably equal to or greater than 1.6 and particularly preferably equal to or greater than 1.7. By setting this ratio (TA / TB) to 3.0 or less, the uncomfortable feeling caused by the attachment due to the thickness difference between the thicknesses TA and TB and the uncomfortable feeling caused by the attachment due to the mass of the shock absorber 56 are reduced. Become. From this viewpoint, the ratio (TA / TB) is more preferably 2.9 or less, and particularly preferably 2.8 or less. In addition, the preferable range of this thickness TA is 5 mm or more and 30 mm or less.

  FIG. 7 is a cross-sectional view illustrating a state in which a human body protection device 60 according to still another embodiment of the present invention is mounted along the circumference of a human body in a standing position and in an intermediate position of a hip joint. The human body protection tool 60 includes a wearing body 62, a first shock buffer 64 that covers a region from the greater trochanter leading edge equivalent portion 48 to the sciatic equivalent portion 28, and one sciatic equivalent portion 28 to the other sciatic equivalent portion. And a second impact buffering body 66 covering the region reaching 28. The mounting body 62 includes a storage chamber 68 in which the first shock buffer 64 and the second shock buffer 66 are stored. The buffering property of the first shock buffer 64 is superior to the buffering property of the second shock buffer 66. This human body protection device 60 is also configured to have better buffering properties in the region from the greater trochanter trailing edge equivalent portion 24 to the sciatic equivalent portion 28 in the standing and intermediate hip joint positions than the other regions. Therefore, the femoral neck fracture can be effectively prevented also in the human body protection device 60. Since the entire heel portion is covered with the first shock buffer body 64 and the second shock buffer body 66, the uncomfortable feeling due to the wearing of the human body protection tool 60 is small. The human body protection device 60 is excellent in wearing feeling and can effectively prevent a femoral neck fracture. In this human body protection device 60, the first impact buffer 64 is made of a combination of materials in which the base polymer, the foaming rate, the foam cell size, and the like are controlled, and the shapes of the first impact buffer 64 and the second impact buffer 66. There is a difference between the shock absorbing property of the second shock absorbing member 66 and the shock absorbing property of the second shock absorbing member 66. The above description is merely an example, and various modifications can be made without departing from the essence of the present invention.

  The human body protection device according to the present invention can also be used to protect the knee, elbow, etc. of the human body.

FIG. 1 is a rear view showing a part of a human body protection device according to an embodiment of the present invention. FIG. 2 is a perspective view illustrating an impact buffer provided in the human body protection tool of FIG. 1. FIG. 3 is a cross-sectional view illustrating a state where the human body protection device of FIG. 1 is mounted along the circumference of the human body in the standing position and in the intermediate position of the hip joint. FIG. 4 is a cross-sectional view illustrating a state in which the human body protection device of FIG. FIG. 5 is a cross-sectional view illustrating a state in which a human body protection device according to another embodiment of the present invention is mounted along a circumference of a human body in a standing position and in an intermediate position of a hip joint. FIG. 6 is a cross-sectional view illustrating a state in which a human body protection device according to still another embodiment of the present invention is mounted along the circumference of a human body in a standing position and in an intermediate position of a hip joint. FIG. 7 is a cross-sectional view illustrating a state in which a human body protection device according to still another embodiment of the present invention is mounted along the circumference of a human body in a standing position and a hip intermediate position.

Explanation of symbols

2, 34, 52, 60 ... human body protection tool 4, 38, 56 ... shock absorber 6, 36, 54, 62 ... mounting body 8, 42, 58, 68 ... storage chamber 10. ··· Insertion 12 ··· Fastener 14 ··· Cross section 16 · · · Greater trochanter 18 · · · Sciatic bone 20 · · · Rear edge position of the greater trochanter 22 · · · Body surface 24 · · · After the greater trochanter Edge equivalent part 26 ... back side tip 28 ... ischial equivalent part 30 ... femur 32 ... femoral neck 40 ... auxiliary shock absorber 44 ... auxiliary storage chamber 46 ... large Trochanter leading edge position 48 ... Location corresponding to the greater trochanter leading edge 50 ... Location corresponding to the sacrobone 64 ... First impact buffer 66 ... Second impact buffer

Claims (5)

A pair of left and right shock absorbers, and a mounting body having a storage chamber in which the shock buffer is stored;
A human body protection device configured to cover an area from a position corresponding to the trailing edge of the greater trochanter to a position corresponding to the sciatic bone in a state where the shock absorbing body is standing and in the intermediate position of the hip joint. A pair of left and right shock absorbers, and a mounting body having a storage chamber in which the shock buffer is stored;
A human body protection device configured such that the shock buffer covers a region from a position corresponding to the leading edge of the greater trochanter to a position corresponding to the sciatic bone in a standing position and an intermediate position of the hip joint.   The human body protection tool according to claim 1, further comprising an auxiliary buffer covering the sacroiliac portion between the shock buffers. An impact buffer and a mounting body including a storage chamber in which the shock buffer is stored;
This shock absorber is configured to cover a region from one large trochanter trailing edge equivalent location to the other major trochanter trailing edge equivalent location in a standing and hip joint intermediate position,
A human body protection device in which the shock absorbing property of the shock absorbing body in the region from the position corresponding to the greater trochanter trailing edge to the position corresponding to the sciatus in a standing and intermediate hip joint state is superior to the other regions. 5. The human body protection device according to claim 4, wherein a thickness of the shock absorbing body in a region from a position corresponding to the trailing edge of the greater trochanter to a position corresponding to the sciatus in a standing and intermediate position of the hip joint is thicker than thicknesses in other regions. .

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